Home / 188,542.56-260,151.43-105,759.21

Finding the Fourth Proportional to 188,542.56, 260,151.43 and 105,759.21

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Solution

The fourth proportional to 188,542.56, 260,151.43 and 105,759.21 is: 145,926.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,542.56 : 260,151.43 = 105,759.21 : x
  2. Step 2: Convert to fraction form
    188,542.56/260,151.43 = 105,759.21/x
  3. Step 3: Cross multiply
    188,542.56x = 260,151.43 × 105,759.21
  4. Step 4: Simplify right side
    188,542.56x = 27,513,409,452.77
  5. Step 5: Solve for x
    x = 27,513,409,452.77/188,542.56
  6. Step 6: Final answer
    x = 145,926.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.